Period
to 21 October 2018

The following table provides summary statistics for permanent job vacancies with a requirement for ISDN skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited ISDN over the 6 months to 21 October 2018 with a comparison to the same period in the previous 2 years.

Integrated Service Digital Network (ISDN)
UK
6 months to
21 Oct 2018
Same period 2017 Same period 2016
Rank 1074 1053 1017
Rank change year-on-year -21 -36 +148
Permanent jobs citing ISDN 78 146 215
As % of all permanent IT jobs advertised in the UK 0.048% 0.084% 0.11%
As % of the Communications & Networking category 0.32% 0.53% 0.67%
Number of salaries quoted 60 111 156
UK median annual salary £37,500 £47,500 £45,000
Median salary % change year-on-year -21.05% +5.56% -
10th Percentile £22,950 £25,250 £26,250
90th Percentile £66,250 £67,500 £65,000
UK excluding London median annual salary £31,000 £41,500 £41,500
% change year-on-year -25.30% - -4.05%

ISDN is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
UK
Permanent vacancies with a requirement for communications or computer networking skills 24,315 27,697 32,062
As % of all permanent IT jobs advertised in the UK 14.87% 15.90% 16.78%
Number of salaries quoted 19,241 22,533 26,331
UK median annual salary £47,500 £45,000 £45,000
Median salary % change year-on-year +5.56% - -
10th Percentile £26,000 £25,750 £25,750
90th Percentile £75,000 £71,250 £72,500
UK excluding London median annual salary £42,500 £40,000 £40,000
% change year-on-year +6.25% - -

ISDN
Job Vacancy Trend

Job postings citing ISDN as a percentage of all IT jobs advertised.

Job vacancy trend for ISDN in the UK

ISDN
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing ISDN.

Salary trend for ISDN in the UK

ISDN
Salary Histogram

The salary distribution of IT jobs citing ISDN over the 6 months to 21 October 2018.

Salary histogram for ISDN in the UK

ISDN
Top 12 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing ISDN within the UK over the 6 months to 21 October 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -36 73 £37,500 -25.00% 15
London +15 39 £45,000 -18.18% 6
UK excluding London -22 37 £31,000 -25.30% 18
South East -2 21 £32,000 -28.89% 3
Midlands +26 8 £35,750 -20.56%
West Midlands +32 6 £41,500 -7.78%
North of England +38 5 £22,500 -18.18% 2
North West +7 4 £22,500 - 2
Wales +2 2 - - 1
East Midlands -5 2 £30,000 -33.33%
Yorkshire +28 1 - -
Scotland +5 1 - - 8

For the 6 months to 21 October 2018, IT jobs citing ISDN also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for ISDN.

1 41 (52.56%) Cisco
2 34 (43.59%) VoIP
3 27 (34.62%) VPN
4 26 (33.33%) Windows
5 23 (29.49%) Firewall
6 19 (24.36%) PBX
7 17 (21.79%) DNS
7 17 (21.79%) MPLS
8 16 (20.51%) SLA
8 16 (20.51%) Active Directory
8 16 (20.51%) Cisco Certification
8 16 (20.51%) LAN
8 16 (20.51%) IP Telephony
9 15 (19.23%) H.323
9 15 (19.23%) Broadband
9 15 (19.23%) Ethernet
9 15 (19.23%) Unified Communications
10 14 (17.95%) WAN
11 13 (16.67%) PSTN
11 13 (16.67%) ITIL
11 13 (16.67%) TCP/IP
11 13 (16.67%) Microsoft
11 13 (16.67%) Juniper
11 13 (16.67%) Telecoms
11 13 (16.67%) VMware
12 12 (15.38%) Service Management
12 12 (15.38%) Windows Server
13 11 (14.10%) Analytical Skills
13 11 (14.10%) Mitel
13 11 (14.10%) Hyper-V

ISDN
Co-occurring IT Skills by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 9 (11.54%) IIS
2 8 (10.26%) MS Exchange
3 5 (6.41%) Skype for Business
4 2 (2.56%) Exchange Server 2013
Applications
1 8 (10.26%) Microsoft Office
2 2 (2.56%) MS Visio
3 1 (1.28%) Microsoft Excel
3 1 (1.28%) Microsoft PowerPoint
Cloud Services
1 6 (7.69%) Slack
2 2 (2.56%) Amazon AWS
3 1 (1.28%) Office 365
Communications & Networking
1 34 (43.59%) VoIP
2 27 (34.62%) VPN
3 23 (29.49%) Firewall
4 19 (24.36%) PBX
5 17 (21.79%) DNS
5 17 (21.79%) MPLS
6 16 (20.51%) IP Telephony
6 16 (20.51%) LAN
7 15 (19.23%) Broadband
7 15 (19.23%) Ethernet
7 15 (19.23%) H.323
7 15 (19.23%) Unified Communications
8 14 (17.95%) WAN
9 13 (16.67%) PSTN
9 13 (16.67%) TCP/IP
10 10 (12.82%) Wi-Fi
11 9 (11.54%) ADSL
12 7 (8.97%) ATM
12 7 (8.97%) DSL
12 7 (8.97%) VRRP
Database & Business Intelligence
1 3 (3.85%) SQL Server
2 2 (2.56%) SQL Server 2008
2 2 (2.56%) SQL Server 2012
2 2 (2.56%) SQL Server 2014
2 2 (2.56%) SQL Server 2016
3 1 (1.28%) MySQL
Development Applications
1 1 (1.28%) Git (software)
1 1 (1.28%) JIRA
General
1 13 (16.67%) Telecoms
2 4 (5.13%) Local Government
3 3 (3.85%) Advertising
3 3 (3.85%) Multimedia
4 2 (2.56%) Welsh Language
5 1 (1.28%) Automotive
5 1 (1.28%) Billing
5 1 (1.28%) Finance
Job Titles
1 10 (12.82%) IT Support
2 9 (11.54%) Consultant
3 8 (10.26%) Cisco Engineer
3 8 (10.26%) Network Engineer
3 8 (10.26%) Voice Engineer
4 7 (8.97%) 3rd Line Support
4 7 (8.97%) 3rd Line Support Technician
4 7 (8.97%) Analyst
4 7 (8.97%) Cisco Voice Engineer
4 7 (8.97%) Support Technician
5 6 (7.69%) Collaboration Consultant
5 6 (7.69%) Infrastructure Engineer
5 6 (7.69%) Senior Network Engineer
5 6 (7.69%) Telephony Engineer
5 6 (7.69%) Unified Communications Consultant
5 6 (7.69%) Unified Communications Engineer
6 5 (6.41%) IT Support Specialist
6 5 (6.41%) Support Specialist
6 5 (6.41%) Technical Support
7 4 (5.13%) Support Analyst
Libraries, Frameworks & Software Standards
1 7 (8.97%) XMPP
2 2 (2.56%) Web Services
3 1 (1.28%) 802.1X
Miscellaneous
1 11 (14.10%) Analytical Skills
2 9 (11.54%) Self-Motivation
3 5 (6.41%) User Experience
3 5 (6.41%) Video Conferencing
4 3 (3.85%) CCTV
5 2 (2.56%) BBC
5 2 (2.56%) Data Centre
5 2 (2.56%) EMV
5 2 (2.56%) Fintech
6 1 (1.28%) Driving Licence
6 1 (1.28%) IVR
6 1 (1.28%) Management Information System
Operating Systems
1 26 (33.33%) Windows
2 12 (15.38%) Windows Server
3 10 (12.82%) Linux
4 8 (10.26%) Ubuntu
5 7 (8.97%) CentOS
5 7 (8.97%) Windows 10
5 7 (8.97%) Windows 8
5 7 (8.97%) Windows Vista
6 4 (5.13%) Windows Server 2008
7 3 (3.85%) MVS
7 3 (3.85%) Unix
7 3 (3.85%) Windows NT
8 2 (2.56%) Windows Server 2003
8 2 (2.56%) Windows Server 2012
8 2 (2.56%) Windows XP
9 1 (1.28%) Debian
Processes & Methodologies
1 13 (16.67%) ITIL
2 12 (15.38%) Service Management
3 10 (12.82%) Problem Management
4 9 (11.54%) B2B
4 9 (11.54%) Infrastructure Engineering
4 9 (11.54%) Problem-Solving
5 8 (10.26%) Telesales
6 7 (8.97%) Incident Management
6 7 (8.97%) Network Virtualisation
6 7 (8.97%) Performance Monitoring
6 7 (8.97%) Presales
6 7 (8.97%) Proactive Management
6 7 (8.97%) Statistical Analysis
7 6 (7.69%) CRM
7 6 (7.69%) Load Balancing
7 6 (7.69%) Time Management
8 5 (6.41%) Agile Software Development
8 5 (6.41%) Configuration Management
8 5 (6.41%) Information Security
9 4 (5.13%) Network Design
Programming Languages
1 7 (8.97%) C
2 2 (2.56%) PowerShell
2 2 (2.56%) SQL
3 1 (1.28%) C++
3 1 (1.28%) JavaScript
Qualifications
1 16 (20.51%) Cisco Certification
2 11 (14.10%) CCNP
3 8 (10.26%) CCNA
4 7 (8.97%) Degree
4 7 (8.97%) Security Cleared
5 6 (7.69%) SC Cleared
6 4 (5.13%) CCSA
6 4 (5.13%) MCP
6 4 (5.13%) MCSE
6 4 (5.13%) Microsoft Certification
6 4 (5.13%) VMware Certified Professional (VCP)
7 3 (3.85%) CCDA
7 3 (3.85%) CCVP
7 3 (3.85%) JNCIS
8 2 (2.56%) PRINCE2 Certification
9 1 (1.28%) CCIE
9 1 (1.28%) DV Cleared
Quality Assurance & Compliance
1 16 (20.51%) SLA
System Software
1 16 (20.51%) Active Directory
2 11 (14.10%) Hyper-V
3 8 (10.26%) VMware Infrastructure
4 5 (6.41%) Terminal Services
5 4 (5.13%) XenServer
6 2 (2.56%) XenApp
7 1 (1.28%) Virtual Machines
7 1 (1.28%) Virtual Servers
7 1 (1.28%) VMware ESXi
Systems Management
1 6 (7.69%) Cisco CUCM
2 5 (6.41%) Cisco UCCX
3 2 (2.56%) Cisco UCCE
3 2 (2.56%) Norton AntiVirus
3 2 (2.56%) RSA enVision
3 2 (2.56%) SCCM
3 2 (2.56%) XenMobile
Vendors
1 41 (52.56%) Cisco
2 13 (16.67%) Juniper
2 13 (16.67%) Microsoft
2 13 (16.67%) VMware
3 11 (14.10%) Mitel
4 10 (12.82%) Avaya
5 6 (7.69%) CheckPoint
5 6 (7.69%) Citrix
6 5 (6.41%) Google
7 4 (5.13%) Ericsson
7 4 (5.13%) Extreme Networks
7 4 (5.13%) NetApp
7 4 (5.13%) Panasonic
7 4 (5.13%) ShoreTel
8 3 (3.85%) MikroTik
8 3 (3.85%) Motorola
9 2 (2.56%) Cognizant
9 2 (2.56%) Genesys
9 2 (2.56%) HP
9 2 (2.56%) Symantec